Quadratic Equations

Quantitative Aptitude (RBI Grade B)

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I. 4x² – 12x + 5 = 0,

II. 6y² – 13y + 6 = 0

x < y

x ≥ y

x ≤ y

x = y or relation cannot be established

Explanation:

4x² – 12x + 5 = 0
4x² – 2x – 10x + 5 = 0
So x = ½, 5/2
6y² – 13y + 6 = 0
6y² – 4y – 9y + 6 = 0
So y = 2/3, 3/2
Put all values on number line and analyze the relationship
1/2… 2/3… 3/2…. 5/2

By: Amit Kumar

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